A least-squares method for computing rate constants of reversible, first-order, triangular network reactions and its application to the intermolecular rearrangements of acetylacetonatobis(4,4,4-trifluoro-1-phenyl-1,3-butanedionato)ruthenium(III).

スポンサーリンク

概要

• 論文の詳細を見る

• A useful method for computing the rate constants of reversible, first-order, triangular network reactions (<B>B</B><SUB>1</SUB>\rightleftarrows<B>B</B><SUB>2</SUB>, <B>B</B><SUB>2</SUB>\rightleftarrows<B>B</B><SUB>3</SUB>, <B>B</B><SUB>3</SUB>\rightleftarrows<B>B</B><SUB>1</SUB>) is developed. It gives the best-fit set of the rate constants from the experimental data of the equilibrium constants and the mole fraction-time curves through an iterative least-squares method. This type of reaction can be classified into three categories for different shapes of the mole fraction-time curves. The method was successfully applied to determining the rate constants of the rearrangement reactions among the three isomers of [Ru(acac)(tfpb)<SUB>2</SUB>] (acac<SUP>−</SUP>=acetylacetonate ion, tfpb<SUP>−</SUP>=4,4,4-trifluoro-1-phenyl-1,3-butanedionate ion) in <I>N</I>,<I>N</I>-dimethylformamide at 90 °C. The direct conversion between the <I>de</I>,<I>fc</I>-bis(tfpb) isomer and the <I>cf</I>,<I>ed</I>-bis(tfpb) isomer was forbidden. The twist mechanisms are incompatible with this fact.

• 公益社団法人 日本化学会の論文

著者

• Sato Gen

  Department Of Chemistry Faculty Of Science And Technology Sophia University

• Shimizu Kunio

  Department Of Chemistry Faculty Of Science And Technology Sophia University

• Hoshino Yoshimasa

  Department Of Chemistry Faculty Of Education Nagasaki University

• Aoki Koichi

  Department Of Applied Physics Fukui University

• Shimizu Kunio

  Department of Chemistry, Faculty of Science, Sophia University

• Takahashi Ryouta

  Department of Chemistry, Faculty of Science, Sophia University

• Satô Gen

  Department of Chemistry, Faculty of Science, Sophia University

関連論文

• A Novel Tetra Nuclear Ruthenium Complex Containing Deltoid Core Topology, [Ru_4(μ_3-O)_2]^, Incorporating Simultaneous O, O- and γ-C Bonded Bridging Acetylacetone Units
• The Generalized t-Distribution on the Circle
• Extracerebral ectopic mass with huge cysts in the anterior cranial cavity
• A-97. The Effects of Prostagrandin F_2α and E_1 on the Exposesd Cat Basilar Artery
• Triple-Decker Trinuclear Porphinatoruthenium (II) Complexes Bridged with Pyrazine or 4, 4′-Bipyridine-Preparation and Electrochemical Oxidation
• Electroxidative Polymerization of Tetraphenylporphinatoruthenium(II) Complexes with Diaza Compounds as Axial Ligands
• Statistical Mechanics of the 1D Sine-Gordon System.II.Transfer Integral Analysis in the Intermediate Temperature Region
• Synthesis, Structure, and Preliminary Magnetic Studies of a Cluster Polymer with a Hexacopper(II) Barrel Portion
• SYMMETRIC UNIMODAL MODELS FOR DIRECTIONAL DATA MOTIVATED BY INVERSE STEREOGRAPHIC PROJECTION
• A Simple Thin-Layer Spectroelectrochemical Cell for Nonaqueous Solution Systems
• Preparation of Binuclear Octaethylporphinatoruthenium(II) Complexes Bridged with Diaza Compounds and Their Electrochemical Oxidation
• 5-Hydroxytryptamine_ and α_2 Adrenaline Receptors in the Brain of Rats Prenatally Treated with Methylazoxymethanol
• Different Magnetic Properties for Diastereomers of Alkoxide-bridged (β-Diketonato)ruthenium(III) Binuclear Complexes
• Synthesis and Spectroelectrochemical Characterization of a Novel Oxalate-Bridged Binuclear Ruthenium(III) Complex
• Changing Mixed-valence State of Hexacobalt Cluster by Substituting Central Metal Ion and by Electrochemical Reduction - Different Mixed-valence States of [M{Co(prolinato)_2}_6]^(M = Ba^ and La^)
• Reaction of Acetone on Coodinated Nitrile in β-Diketonato Ruthenium Complex, [Ru(acac)_2(CH_3CN)_2] with the formation of β-Ketiminate
• Proper Analytic Point Spread Function for Lateral Modulation
• Radii of Microelectrodes Undervalued from Steady-state Currents
• Catalysis and inhibition of charge transfer rate of cadmium ions at a partially blocked dropping mercury micro electrode by butanol
• The Reduction of Aquopentamminechromium(III) Ions at the Dropping Mercury Electrode
• Reduction of Hexamminechromium(III) Ions at the Dropping Mercury Electrode
• 滴下水銀陽極における交流過程〔英文〕
• The Formation Constants of Metal Acetate Complexes. III. Polarographic Determination of the Formation Constants of Acetatocadmium(II) and Acetatocobalt(II) Complexes
• Unusually high oxidation half-wave potentials of di- and trichalcogena(3)ferrocenophanes. The effect of chalcogen atoms in the bridge.
• Photocatalytic behavior of di- and triferrocenylbenzenes on reduction of methyl viologen and photochemical hydrogen evolution from methanol under visible light.
• Facial-meridional isomerization of some tris-(.BETA.-diketonato)ruthenium(III) complexes.
• Evaluation of kinetic parameters from steady-state voltammograms at ultramicrodisk electrodes.
• Electrochemistry of tris(.BETA.-diketonato)ruthenium(III) complexes at platinum electrodes in nonaqueous solutions and substituent effects on their reversible half-wave potentials.
• A Ruthenium(IV)-Ruthenium(III) Dimer, Product of the Reaction of Aqua(ethylenediaminetetraacetato)ruthenium(III) with Chlorate Ions
• A least-squares method for computing rate constants of reversible, first-order, triangular network reactions and its application to the intermolecular rearrangements of acetylacetonatobis(4,4,4-trifluoro-1-phenyl-1,3-butanedionato)ruthenium(III).
• The Reduction of [Ru(Hedta)(H2O)] at the Mercury Electrode and Subsequent Reactions
• Reaction of Ru(II)-EDTA in sodium formate-formic acid solutions.
• Polarographic behavior of tris(acetylactonato)ruthenium(III) in aqueous and acetonitrile solutions.
• Multiple paths for photo-methylation and -methoxylation of methyl 2-pyridinecarboxylate in methanol.
• Elimination reaction of aldehydo-D-glucurono-6,3-lactone derivatives.
• Precise measurement of ionic diffusion coefficients with a hanging mercury drop electrode.
• Determination of diffusion coefficients of metals dissolved in mercury by double potential step chronoamperometry at hanging mercury drop electrodes.

もっと見る 閉じる

スポンサーリンク